Automobile cooling system.



T. B. JEPFERY, DECD.

K. E., o. T. a. H. w. JEFFREY, EXEGUToRs.

AUTOMOBILE COOLING SYSTEM.

APPLIOATION FILED FEB. 2a, 1904. LQILQQFSSS. Patented June 23, '1.914,

r ma n.. @www /fM E Z T. B. JEFFREY, DEOD.

K. E.. C, T. n H. W. JEFFERY, BXECUTOBS. AUTOMOBILE COOLING SYSTEM. APPLIOATION r1LBD.1EB.2a, 1904.

Patented Jun@ im,

UNITED sTATEs PATENT oEEicE.

THOMAS B. JEFFERY, 0F KENOSHA, WISCONSIN; KATE E. JEFFERY, CHARLES T. JEFFERY, AND HAROLD W. J EFFERY EXECUTORS OF SAID THOMAS B. JEFFERY,

DECEASED.

AUTOMOBILE COOLING SYSTEM.

Specification of Letters Patent.

Patented June 23, 1914.

Application led February 23, 1904. Serial No. 194,762.

To all whom. it may concern Be it known that I,THOMAS B. JEFFERY, a citizen of the United States, residing at Kenosha, county of Kenosha, State of Wisconsin, have'invented a certain new and useful Improvement in Automobile Cooling Sys.

tems, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanyin drawings, which form a part of this speci cation.

My invention relates in general to s stems for dissipating the heat generated y eX- losive engines, and particularly to circuating fluid systems especially designed for cooling the cylinder of an automobile. In'

automobile cooling systems -in which a circulating fluid is used to absorb the heat from' the cylinder it is customary to provide a radiator preferably located at the front of the automobile through which the heated fluid from the water jacket around the cylinder passes and is there cooled by radiation.

Prior to my invention, so far as I am aware, the circulation of the cooling fluid in suchsystems has been 'produced by a pump the operation of which draws the heated fluid from the water jacket around the cylinder and forces it through the radiator, after which the cooled fluid is returnedtothe water jacket by the forced circulation produced by the pump. The employment of a pump for inducing circulation is objection;-

lable not only because it adds to the complication of the -a-utomobile mechanism, but primarily because when for any reason the pump ceases to operate, the circulation discontinues, resulting in the cylinder becoming overheated and the piston sticking therein.

The primary object of my invention is to provide. a fluid cooling system for auto- .bile engines in which the usual pump for producing circulation between the ,water jacket' around the cylinder and the radiator at the front of the automobile, is dispensed with, and the circulation producedv entirely by the rising of the fluid a's it is heated in the water jacket and the falling of the fluid as it is cooled in the radiator.

- A and A2.

vide a cooling system for automobile engines which will be simple in construction, inexpensive in manufacture, and efiicient in use. My invention, generally described, consists in a radiator supported at the front of an A further object of my invention is to pro- I automobile having a partition therein, a wavter jacket surrounding the engine cylinder,

a conduit extending from the to of the jacket to the radiator at one side o the partition, a return pipe extending from the radiatorat the other side of the-partition and communicating with the bottom of the water jacket.

My in\v ention will be more fully described hereinafter with reference to the accompanying drawings in which the same is illustrated as embodied ina convenient and practical form, and in which- Figure 1 is a plan view showing a portion of the automobile supporting frame with my improved cooling system mounted thereon; Fig.'- 2 an enlarged plan View of one of the tubes of the radiator; Fig. 3 a crosssectional View of one of the radiator tubes; Fig. 4 an end elevational View looking from the right in Fig. 1; Fig. 5 a diagrammatic View showing the lposition' of the partition in the radii ator; and Fig. 6 a side elevational view looking upwardly with respect to Fig. 1.

The same reference fharacters are used to designate the same parts in the several figures` of the drawings.

A and A2 indicate the side sills of the automobile frame which are united by the cross sill A preferably formed integral cations of the pistons in the cylindersV through -the connecting rods united to the cranks. Such details are not shown in the 'drawings as they iorin no part et roy invention and are well known in the art.

E andI ll desijnate water jackets suo roundingr the ends of the cylinders in which the explosions occur and through which a cooling fluid circulates.

F designates a conduit leading from a radiator il preferably mounted above the transverse beam A and communicatingwith the water jackets E and E2 at the tops thereof through the medium ci the branch pipes f and f2.

G designates a second conduit communicatino bv means of branch eines g and g2 with kthe'water jacket lil ano. l?? at the bottoms thereof and extending to and communi eating with the radiator l'l. The radiator il preferably comprises plurality of parallel tubes It having expanded hexagonal ends, the flat portions on'the ends of adjoining tubes being directly connected and the diameters of the tubes between the being restricted by corrugations so as to torni a space around and between the tubes tor y the circulation of 'the cooling;- tluid. ldy enn "panding the ends of the tubes forming the radiator and directly uniting there together the use of plates surrounding the ends ot' the 3o tubes is unnecessary. Located Within the radiator is a partition coi'nprisinpj a ren tical portion if" extending' in a plane between the ends of the conduits F and (l and a horizontal portion if?. The partition is shown in Fig. 5 as it' composed olf straight portions but when used in radiator coinprising tubes having directly united hef;- agonal ends the partitions are so deflected as to pass between the tubes.

4,0 The operation of my invention is as tollows: The fluid in the Water jackets E and E2. when heated by the explosions in t cylinders rises and passes through t.

branch pipes y and f2 into the conduit F from which it flows 'into the radiator, and

circulates around the tubeslii and is cooled by the air passing through the tubes. The

liquid, after being cooled .in the radiator,

` passes through the conduit G and branch pipes y and g2 into the Water jackets.

As'the branch pipes g and (/2 of the return conduit G communicate with .the Water jackets at the lowest points thereof1 and as the branch conduits f and f2 comnuinicate. with the conduit if leading' :trom the highest points in the water jackets, a circulation through the system is .produced by reason of the liquid in the lWater jackets when heated, rising. The partitions in the radiator insure the hot Water delivered to the radiator' from the pipe ll' passingl upwardk,Y around the partitions, and when cooled, downwardly through the conduit G hack to the Water jackets. i5 From the' foregoing description it will be .jacket to the bottom of the radiator on one Liconsa observed that l have invented an improved system for cooling thev engine cylinder of an automobile, in which the circulation of the lluid through the system is induced Without ihe use ot' pumps by the -water when 7@ heated in the water jackets rising, and when cooled in the radiator, descending.

ll'hilc l have described more or less precisely the detail-s oiE construction, l do not Wish to be'understood as limiting myself 75 thereto, as l contemplate changes in form, the proportion ot parts, and the substitution ot equivalents, as circumstances may suggest or render expendient, without departing from lthe spirit of my invention. E@

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

i. .ln a. liquid cooling" system for explosive engines, the combination with a Water acket g5 .around the cylinder, of a radiator, a partition Within. said radiator comprising1 a vertical portion extending upwardiy from the bottom ot' the radiator and a. horizontal portion extending from one side oi the top 9@ of the vertical portion, a conduit leading' from the top olf the Water jacket and conn inuuioatinn' with the bottoni oi the radiator at one side oi said partition, and return conduit leadingr from the bott radiator at the other side of said to and comnninicating with the bott the water jacket.

ln a liquid cooling system for explosive engines, a combination with the 'Water jacket around the cylinder of a. radiator, a partition within said radiator comprising vertical portion Aupwardly crotendiup,` from the bottom of the radiator to a point above the top of -the jacket and a horizontal portion extending,- troni one side of the top of the vertical portion, a conduit leadinglp from the top of the water jacket and communicating' with the bottonnot the radiator at one side of said partition, and a return conduit leading' from' the' bottom of the radiator at the other side oi" said partition to and communieating' with the bottom of the jacket,

ln a liquid cooling system for automobile engines, a combination with a Water jacket around'the cylinder, a radiator sup ported at the iront ot an automobile and having` a plurality of horizontal air tubes extending through the same around which the liquid circulates, a partition Within said radiator extending upwardly from the bottom thereof to a point above the top of the Water jacket, a substantially horizontal con duit leading from the top of the Water side of the partition, and an inclined conduit leading' from the bottom of the radiator to the bottomof' the Water jacket on the other' side ot' the partition.

4. in a liquid. cooling system for automobile engines, the combination with a Watending from the bottom of the radiator to 10 ter jacket around the cylinder, of a radiator the bottom of the Water jacket on the other supported 'at the front of an automobile and side of the partition.

having a plurality of horizontal air tubes In testimony whereof, I sign-this'speciextending.,T through the saine around which fication 1n the presence of two witnesses.

the liquid circulates, a partition within said THOS. Bl JEFFERY. j radiator, a conduit leading' from the top of litliesses: 4 the Water jacket to the radiator on one side Geo. L.' lViLKINsoN,

of the partition, and a second Conduit. ex- CLARA C. CUNNINGHAM. 

